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P. V. ADKINSr ROAD SURFACER. APPLICATION man NOV. 22. 1918.

mnwron PAUL MAD/7N8 W ATTORNEY Patented Dec. 23,1919.

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wmvassss P. V. ADKINS.

ROAD SURFACEIL.

APPLICATION FILED NOV. 22, 1918.

Patnted Dec. 23, 1919.

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RIVEYS PAUL VINCENT ADKINS, 0F LEAVENWORTH, KANSAS.

ROAD-SURFACER.

Specification of Letters Patent. 7 Patented Dec. 23, 1919.

' Application filed November 22, 1918. Serial No. 263,769.

To all whom it may concern:

Be it known that 1, PAUL V. ADKINS, a citizen of the United States, and a resident of Leavenworth, in the county of Leavenworth and State of Kansas, have invented a new and Improved Road-Surfacer, of which the following is a description.

My invention relates to a machine for use in keeping up the grade of earth roads, or streets, and the leveling down of high spots therein, as well as for filling up the ruts made by vehicles; and more particularly the invention relates to a machine of the class referred to and involving a wheeled frame having generally the shape of a scalene triangle and employing an obliquely disposed transverse scraper blade.

The invention has for objects to provide an improved relation of the frame the blade, and the Wheels, with the purpose of readily disposing the blade at the proper angle with respect to the direction of travel as well as varying its vertical inclination, and to effect a lateral tilting of the frame and blade bodily to the proper degree for the effective scraping of the dirt from the curb drain and side of the road toward the center.

A further object is to provide a novel means-for slinging the blade on the frame to insure the proper bracing thereof at all times, while making provision for the angular adjustment of the blade with facility. Reference to be had to the accompanying drawings forming apart of this specification, it being understood that the drawings are merely illustrative of one example of the invention. I

Figure 1 is a perspective view of a road surfacing machine embodying my invention, parts being broken away;

. 'Fig. 2 is a planview on with parts broken away;-

Fig. 3 is a fragmentary View in cross section on the line 3-3, Fig.2; Fig. 4; is a fragmentary sectional side view as indicated by the line 4.4, Fig. 2;

Fig. 5 is a longitudinal section on the line 5-5, Fig. 2. f In carrying out my invention in accordance with the illustrated example, the frame of the machine, in order to give the general shape of a scalene triangle, has the side members 10 and 11 converging toward the front of the machine and a cross bar 12 joining the same at the rear. The one side a reduced scale bar 10 is preferably at a slightly less angle to the longitudinal axis of the machine than the opposite side bar 11 and the latter is carried rearwardly beyond the bar 10, the bar. 12 being oblique to join the. rear ends of said side bars. The numeral 13 indicates a seat standard mounted on the bar 12, and 1 1 indicates a fragment of atongue. The tongue 1s pivoted by a vertical pivot or king bolt lt which passes through a plate 16' rigid with the frame-and through a bracket 16 bolted to said tongue and forming'bear ings for the axle ofthe ca'sterwheel.

, A transverse scraper blade 17, preferably curving vertically, is slung on the sidebars 10, 11, at the under side of the frame, and is adjustable to vary its anglewith respect to the direction of travel, means for the pur pose beingas follows: A bracket 18 gener ally of Y-shape is pivoted at the lower end as at 19 to an angle bracket 20 or the like, rigid with the blade 17 at the back of the latter, andthe Y-arms of said bracket are secured respectively to depending arms 21, 22 formed on or secured to a slide 23 which is secured by a bolt 23, said bolt passing through any one of a longitudinal series of holes 23 in the side bar 10, whereby the slide 23 may be shiftedforward orback on the side bar 10, for example, from the full line position of Fig. 2 to that indicated in dotted lines and the slide-then secured in the adjusted position by the bolt 23?. 'At the opposite side bar 11 a bracket 18" formed in a single piece or built up as may be. found convenient and. generally of Y- shape is pivoted at its lower end as at 26 toa bracket 27 or the like rigid with the blade 17Yat'the back while the diverging arms of said bracket are secured by bolts 2 1,25 tothe side bar 11. The side barsylO and 11 are angle bars, the slide 23 being secured to the horizontal flange. of the bar 10 while the bracket 18 is secured to the vertical flange of the side bar 11. Bythe' described connections between the blade 17 v and the frame bars,the blade 17 may be shifted to vary its angular position through the medium' of the slide 23las'des'cribed. The said pivots are sufficiently loose' to permit the blade. toshi'ft with the" slide; 23; brace 18 ma beconnected with the bracket 18Fand' with the crossbar 12. 1

In orderto vary the general .verticalangle of the blade 17 a further articulated connec tion is establishedbetween the said bladeand the frame bar 11 as follows: A standard 28 rigid with the blade at the back is pivotally connected at its upper end with the rear end of the link 29, which at its opposite end has a lateral trunnion or crank pin 30, which is receivable in any one of a longitudinal series of holes 31 in the vertical flange of the side bar 11, a cotter pin'32 or the like being employed to fasten said end 30. The articulated connection provided by the elements 28, 29 thus rovides means whereby the blade 17 may e rocked on the pivots l9 and 26 to vary the vertical angle of the blade, and constitutes additional means to brace the blade, said elements 28, 29 readily accommodating themselves to the adjustment of the obliquity of the blade by the shifting of the slide 23.

On the frame at the rear end of the side bars I provide running wheels mounted on cranked axles for raising both sides of the frame at the rear to thereby bodily raise the blade 17 clear of the road as in traveling, or said wheels being adapted to be relatively shifted to tilt the frame laterally for inclining the blade to scrape dirt at the righthand of the blade or curb side of the machine toward the center of the rod. lhe wheel 33 at that side of the frame having the side bar 10 is mounted on the crank arm 34 of an axle 35 having hearings in a bracket 36 and in a quadrant 37, the latter receiving the latch 38 of a hand lever 39 for rocking said axle to swing arm 34 and wheel 33 through an are for raising or lowering the frame at that side. Similarly, at the rear end of the opposite side bar 11 is a running wheel 40 on an arm 41 of a crank axle 42 rockable in a bearing bracket 43 and quadrant 44, which receives the latch .45 of a hand lever 46. By throwing the both levers 39, 46 forwardly, the arms 34, 41, and Wheels 33, 40 will be thrown rearwardly to lower the frame and thus lower the blade 17 into the scraping position. The left wheel 40 and its lever 46 are utilized to raise the side bar 1]. higher than the opposite side bar 10, to tilt the frame laterally for giving a lateral inclination to the blade and thereby causing the right end to scrape the drain and leave a gradually increasing space between the edge of the blade and the road surface to distribute the dirt to an increasing degree from the neighborhood of the drain toward the center of the road.

It is to benoted that the caster wheel is at the front of the machine,that is at the apex of the triangular frame, whereas the rear running wheels with their cranked axles are in the rear of the scraper blade, the results being that the machine has a broad and ample base, and the maximum clearance is provided in front of the blade. Furthermore, unrestricted clearance is available for the mounting and operations of the running wheels and their axles, so

that crank arms 34, 41 of ample length points in the road as regards the extent of the ruts and other deterioration. The greater angle of the left hand side bar with respect to the line of draft and the carrying of said side bar beyond the opposite side bar carries the left hand side of the frame at the rear laterally a greater distance from the longitudinal axis of the machine and the line of draft, so that the angle given to the blade and frame in tilting through the movement of the left hand wheel can be nicely regulated without close attention by the operator, since the tilting is gradual and readily under control while being easily and quickly accomplished. An important advantage also, of the greater angle at the left hand side and the position of the left hand wheel 40, is that said wheel serves to give a ide range of lateral tilting movement to the blade without giving a pronounced tilt to the frame. At the same time, the lesser angle of the right hand side bar permits of the right hand wheel and the right end of the blade being run close to the curb. Moreover, the greatest load, due to the lower right hand end cutting deeper is adjacent to the pull or line of draft. r

.The described machine, it will be ob served, is characterized by simplicity of construction and facility in effecting the described adjustments and control, and at the same time, it will be obvious that the machine is designed with a view to strength and durability.

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the mechanical details herein illustrated,'sinc e manifestly the same can be considerably varied without departure from the spirit of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent is 15A machine of the class described in-. eluding a frame in the form of a scalene triangle, comprising side bars converging toward the front, the left hand side bar being at a greater angle to the longitudinal axis of the machine than that at the right hand bar and extending at its rear end beyond the said right hand bar, a transverse obliquely disposed scraper blade supported on said frame at the under side thereof, a wheel at the front of said frame, running wheels in the rear of the blade, adjacent to the respective sides of the frame, axles mounted to rock independently on the frame and each presenting a rearwardly disposed crank arm mounting the respective running wheels, and .means to independently rock said axles.

2. A machine of the class described including a frame in the form of a scalene triangle, presenting forwardly converging side bars, a wheel beneath the apex of the frame, a transverse scraper blade suspended on said frame adjacent to the rear end, running wheels in, the rear of the blade adjacent to the respective sides of the frame, axles rockable on the frame and each presenting a rearwardly extending crank arm mounting the respective rear wheels, and means to independently rock said axles to raise or lower the frame on either side.

3. A machine of the class described in cluding atriangular wheeled frame presenting forwardly converging side bars, an obliquely disposed transverse scraper blade beneath said frame, brackets pivotally connected to said blade near its lower edge at the back, a slide carrying one of said brackets, a bolt in said slide, there being a series of bolt holes in the adjacent side bar of the frame for receiving said bolt, means to secure the other of said brackets to the opposite side bar, a rigid element on said blade adjacent to one of said brackets, and a link rockably mounted at one end in said rigid element, there being a longitudinal series of holes in the adjacent side bar either of which holes may form a bearing for the opposite end of said link. 7

4. A machine of the class described including a triangular wheeled frame, presenting forwardly converging sides, an obliquely disposed transverse scraper blade beneath said frame, depending brackets on said frame at opposite sides, means pivotally connecting said blade near its lower edge with said brackets, to permit the blade to, rock in a vertical plane, and means to adjust one of said brackets longitudinally of said frame; together with means to establish an articulated connection between the frame and the blade at a point adjacent to the other bracket, and means to adjust said last-mentioned means to rock the blade on said pivots.

5. A machine of the class described, in-

eluding a frame in the form of a scalene triangle and presenting forwardly converging side bars, a wheel beneath the frame at the apex, a transverse scraper blade suspended on said frame adjacent to the rear end thereof, axles mounted on said frame one forward of the other, and both in the rear of said blade, each axle presenting a rearwardly extending crank arm, running wheels mounted on the respective crank arms, and means to independently rock said axles to raise or lower the frame on either side.

PAUL VINCENT ADKINS. 

